31103002001923 has 2 divisors, whose sum is σ = 31103002001924. Its totient is φ = 31103002001922.

The previous prime is 31103002001909. The next prime is 31103002002019. The reversal of 31103002001923 is 32910020030113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31103002001923 - 2¹³ = 31103001993731 is a prime.

It is a super-2 number, since 2×31103002001923² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31103002001723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15551501000961 + 15551501000962.

It is an arithmetic number, because the mean of its divisors is an integer number (15551501000962).

Almost surely, 2^{31103002001923} is an apocalyptic number.

31103002001923 is a deficient number, since it is larger than the sum of its proper divisors (1).

31103002001923 is an equidigital number, since it uses as much as digits as its factorization.

31103002001923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

The spelling of 31103002001923 in words is "thirty-one trillion, one hundred three billion, two million, one thousand, nine hundred twenty-three".